Counterterrorism police have arrested six people suspected of planning attacks in Indonesia. In this photo taken on Dec. 17, 2015, Indonesian riot police prepare to secure the premises following clashes inside Kerobokan prison in Denpasar on Indonesia's resort island of Bali. Sonny Tumbelaka/AFP/Getty Images

Counterterrorism police have arrested six people suspected of planning attacks in Indonesia, seizing bomb-making materials and “jihad manuals” from the men they said included Islamic State group members and supporters, the Jakarta Globe reported Sunday.

"Six individuals rounded up in a series of counterterrorism raids that began on Friday and ran into late Saturday reportedly planned to bomb Shiite communities in Java and Sumatra," the daily said on its website.

It cited National Police Chief General Badrodin Haiti as saying that raids to round-up the suspects were prompted by intelligence from the U.S. Federal Bureau of Investigation and the Australian Federal Police.

"This terrorist network was preparing for bombing attacks in various locations in Indonesia," Badrodin said, referring to one of the acronyms of the Sunni militant group ISIS. "Some are ISIS members and others are sympathizers."

Badrodin said the counterterrorism operation was still ongoing. "That’s why we’re calling on the public to be vigilant and report anything suspicious," he said.

Indonesia will deploy more than 150,000 security personnel and several religious organizations to safeguard churches and public places around the country during Christmas and New Year's Eve celebrations, the country's military chief said on Friday.

Indonesia, with the world's largest Muslim population, has already stepped up security and surveillance in some areas in the wake of attacks in Paris last month that killed nearly 130 people and for which ISIS claimed responsibility.